Attachment for threshing-machines.



PATENTED MAY 22, 1906.

J. I. HUPPHINES. ATTACHMENT FOR THRESHING MAOHINES.

APPLICATION FILED MAY13.1905- @Xhtmzowa t] Si OFFICE.

' Specification of Letters Patent.

lli'atented May 22, 1906.

Application filed May 13,1905 Serial No. 260,306.

To all whom it may concern:

I Be it known that I, JAMEsI. HUFFHINES,

a citizen of the United States of America, residing at St. Louis, State of Missouri, have invented new and useful Improvements in Attachments for Threshing-Machines, of which the following is a specification. v

This invention relates to threshing-Ina- ..ohines, and especially to the straw-stacking attachment therefor, and has for its object to produce a comparatively simple inexpensive device of this character in which the grain passing outward through the stackerduct with the straw will be returned to the thresher and one wherein a back draft or suction is provided for returning the grain to the machine.

A further object of the invention is to provide a stacker with a simple and eflicient form of mechanism for catching and saving the grain which may pass into the stacker with the straw and chaff.

With these and other objects in view the invention comprises the novel features of construction and combination of parts more fully hereinafter described.

In the accompanying drawings, Figure 1 is a side elevation of a stacker having my invention embodied therein. Fig. 2 is a longitudinal section through a portion of the stackerduct. Fig. 3 is a transverse section, on an enlar ed scale, taken on the line 3 '3 of Fig. 2.

Re erring to the drawings, 1 designates a threshing-machine equipped wlth a stacker pipe or duct 2, embodying in its organization a pair of joints or sections 3 4', designed to telescope one with the other, the fore oing arts, which are conventionally shown erein, being of the usual or any approved construction and material in accordance with the present invention. The outer section 4 of the pipe 2 is provided throughout substan tially its entire length and at its normally lower face with a series of openings or perforations 5, there being arranged upon the outer face of the section 4 and housing its perforated portion a casing 6, secured in position upon the stacker-pipe preferably by means of clamping members or bands 7, the casing 6 being spaced from the face of the pipe to produce a compartment or chamber 8, as seen more clearly'in'Figs. 2 and 3 and for a pur-- pose which will hereinafter ap ear.

Provided on the casing 6 ner end of the chamber 8 is an outwardlyprojecting tubular neck or nipple 9, to which jacent the in is attached a return or suction pipe or duct 10, composed of a pair of telescopic sections,

said duct being connected with the nipple 9 by means of a flexible elbow 11 and at its inner end by means of a flexible elbow 12 with a receptacle 13, in which is disposed a fan 14, designed to be driven in any suitable manner to create a backward suction through the duct 10.

In practice the straw and chaff from the thresher are driven in the usual manner and by air under pressure outward through the stacker-duct 2, by which they are formed into iles or stacks, as usual. As the material is p orced outward through the duct 2 any grain entering the latter will, owing to its reater s ecific gravity, fall upon the lower ace of t e duct and upon reaching the perforated portion thereof will pass through the perforations 5 into the com artment 8 and upon entering the latter wil owing to the inclination of the stacker, pass downward to the lower end of the compartment, from which it will be drawn through the suction-pipe 10 and delivered into the receptacle 13, as will be readily understood. It may be mentioned in this connection that the positive settling of the grain upon the perforated portion of the pipe and its passage through the perforations 5 into the compartment 8 are facilitated, owing to the forced air-current within the duct 2 blowing outward through and directing the grain toward the openings 5.

From the foregoing it is apparent that I produce a simple device admirably adapted for the attainment of the ends in' view, one which may be readily applied to the various forms of stackers now in general use, and one which will effect a material saving of the ain which under present conditions is lost,

it being understood that in attainingthese 1. in a device of the class 'describeda' stackeaduct provided with perforatipps,,...&

said compartment and second casing for communication, and means in the last-named casing for creating a, suction in the connect ing-duct to draw material from the compartment.

In testimony whereof I affix my signature in presence of two witnesses. 7

JAMES I. HUFFHINES.

Witnesses GEORGE KEELER, LOUIS MILLER. 

